The CPI scores countries on a scale of zero to 10, with zero indicating high levels of corruption and 10, low levels. And the most corrupt places in the world are not the most surprising. Unstable governments, often with a legacy of conflict, continue to dominate the bottom rungs of the CPI. Afghanistan and Myanmar share second to last place with a score of 1.4, with Somalia coming in last with a score of 1.1.

The world's most peaceful countries score the best. In the 2010 CPI, Denmark, New Zealand and Singapore tie for first place with scores of 9.3.